Portable electric-light cabinet.



.No. 853,033. PATENTED MAY '7, 1907.

H. H. ROBERTS. PORTABLE ELECTRIC LIGHT CABINET.

APPLICATION FILED JULY 11 1906.

2 SHEETS-SHEET 1.

V N E/VTOI? oEETs A TTORNEYS PATENTED MAY 7, 1907 H. H. ROBERTS.PORTABLE ELECTRIC LIGHT CABINET.

APPLICATION FILED JULY 11, 1906.

2 SHBETSSHEBT 2.

INVENTOH ARVEYH. ROBERTS UNITED ST ES I HARVEY n. ROBERTS, OF LEXINGTON,KENTUCKY.

PORTABLE ELECTRIC-LIGHT CABINET.

. Light Cabinets, of which the following is a walls non-conductors ofheat and for making specification.

My invention is in-the nature of a new portable electric light cabinet,designed for.

treatment of the body by the therapeutic influence of different coloredlights in such diseases as rheumatism, neuralgia, migraine,inflammations, &c.

It is especially designed to provide a light, simple and portableapparatus which the patient can apply himself to the various parts ofthe body in home treatment, and which shall be so constructed as to beconveniently handled and applied and which will permit various colors oflight to be separately or simultaneously used and which an evendistribution of any one color within shall be free from all risk offire.

It consists in the novel construction and arrangement of the portablecabinet, whichI will now proceed to describe with reference to thedrawing, in which Figure 1 is a front elevation. Fig. 2 a rearperspective view with the back plate removed and showing the wiring.Fig. 3 is a side elevation and Fig. 4 is a section on line 44 of Fig. 2.

In the drawing, A represents the outer case which is an approximatelysquare box-of a little less than one cubic foot in dimension, so as tobe easily handled by the patient in his two hands and "for which purposetwo handles a a are fixed, one to each side of the case, in convenientposition to be grasped by the two hands of the patient in applying thevcase to his own 'body. One side of the box is entirely open and itsedges e are curved to fit the contour of the body, or part of thebody,-to be treated and are padded or bound with rubber. The upper andlower walls of the box and the two side walls and back are all closedand lined interiorly with mirrors B preferably made of polished metaland havmg between them and the wooden walls of the box a lining b ofasbestos to render the a fire proof construction.

The back of the boxcarries the electric light bulbs C which project intothe box and, as shown, are about 50 candle power each and nine innumber, but which maybe of a Specification of Letters Patent.

Application filed July 11,1906. Serial No. 325.592.-

Patented May 7, 1907.

greater or less number. The back wall of the box is'made double, theinner back wall D receiving the sockets of the electric bulbs and thespace between the inner back wall D and the outer back wall D forming ashallow chamber for the wiring.

The box is made somewhat narrower at the back than it is at the front oropen side, forming shoulders s s on the sides in the plane offthe innerback wall D of the box. The outer, back wall D is made detachable and issecured by screws so as to be convenchanging the wiring.

Ofthe nine electric bulbs shown, those of themiddle vertical row arewhite glass, while those of the two vertical side rows are colored witheach other. The red bulbs are indicated in Fig. 2 by the letter R theblue by the letter B and the white bulbs by the letter W This mixedrelation of colors is to give the box as seen in Fig. 1. p

In the external recess-s on one side of the box are arranged threeswitches constructed as plugs P marked respectively red, white and blue,as seen in Fig. 3. When the red plug only is in, only the red bulbs areilluminated; when the blue plug only is in, only the blue bulbs areilluminated and when the white plug only is in, only the white bulbs areilluminated and when all of the plugs, or any two of them, are in, thecorresponding bulbs are illuminated to give mixed colors. Thesecolorsmay be changed,

or extended, or modified as may be desired. I For illuminating the lampsof the portable cabinet a duplex conductor cable E is employed, which atone end has a socket plug F may be conveniently screwed into anyreceiving socket connecting with the main wires of any electric light'system. The end of this cable is connected to the box, and the wiring ofthe lamps is as follows, reference being had to Fig. 2.

Each switch plug P has a plug socket consisting of two half round partsbetween which the plug P fits and which two parts are part p is aninsulated piece of metal belonging exclusively to its plug P. The otherpart of each plu socket is formed of a half round notch in a past allthe plugs and is common to them all.

iently removed for adjusting, repairing, or

like an inacndescent bulb-socket and which electrically connected by theplug. One

ong metal bar G which extends bulbs, here shown as red and bluealternating IIO The positive polesa of each of the electric bulbs areconnected'tog'ether by Wire w, and

. this wire w is connected to the conductor.

' red plugsocket, so that bar G and the poles 'y of Wire 20 of thecable. The other wire y of the cable is connected to the opposite poles'y of the lamps through the lugs P as follows: The Wire y'-'is connectedto the long socket the lamps are connected as follows; the poles y ofred lamps R are all connected by Wire '12 with each other and to theindividualsocket plate 1) of the when the red plug P is in its socket,the' circuit will beclosed through the red lamps and the latterilluminated. The poles 'y of the White lamps W in like manner, are allconnected together by wire it and also to the individual socket plate pof the White plug socket, so that when the White socket lug is in itssocket, the current will be close through the White lamps and the whitelamps illuminated.

1 individual socket plate p of the-blue- Thepoles y of the blue lamps Bare allconnected together by wire 2 and also to" the socket, so thatwhen this plug P is in, the drcuit will be ,closed through the bluelamps and the blue lamps illuminated and when all the plugs are in, allthe lamps of the several colors will be illuminated, .In this way thetherapeutic effect ofany color of light is i made available with areatvariety o'f modifications and changes 0 intensity.

of its Wires co ored electric lamps'projecting into the box a mixedrelation, a duplex cable having one ected to one terminal of each lamp,a compound switch having one of its members connected to the other wireof the duplex cable, said switch having a lurality ofo posite contactseach connected respective y to the other terminal of a lamp and each ofsaidcontacts being exclusively connected to lam s of the same color. I

2. A porta le electric light bath cabinet, consisting of a rectangularbox having an open front end and a narrower and shouldered back end,multiple groups of different colored electric lights box, a verticalseries 0 switches, ran ed in the edge of the narrower pf t e box, plugseats consisting of a single metal bar arranged in the box and extendingrojecting into the plu s arac k end the other side of the plug seatswith separate circuits therefrom to the separate color groups ofelectric lights and a common return circuit.

HARVEY H. ROBERTS. Witnesses: I i

ORRIN LE RoY SMITH, MARY KEITH M L S,

